RAF Typhoon jets have operated alongside France's air force in a coordinated attack on an underground arms cache in Syria operated by the Daesh militant organization, as stated by the British defence ministry.
The site, identified by intelligence, was believed to be containing munitions and bombs, the release indicated, and was situated in hills just above Palmyra in the heart of Syria.
"Our aircraft employed Paveway IV guided bombs to hit a several entry passages providing entry to the site... initial indications suggest the strike was effective," officials stated.
There was no sign of any civilian casualties in the attack late on Saturday and all the aircraft made a safe return, the defence officials confirmed.
The British jets were assisted by a Voyager refuelling tanker.
Daesh - referred to as ISIS - established militant control over large swathes of Syria and Iraq prior to its 2019 collapse.
"This operation underscores British leadership, and resolve to operate in unison with allied nations, to stamp out any resurgence of Daesh and their dangerous and violent ideologies in the area," Britain's Defence Chief the minister remarked.
UK warplanes have conducted surveillance missions over Syria to "prevent any efforts to regroup" of Islamic State after its military defeat at the battle of Baghuz in 2019, the ministry said.
"I extend gratitude to every member of our armed forces participating in this operation for their professionalism and their bravery," he added. "They were part of thousands of British troops stationed over the holidays. This action, to take out dangerous terrorists who threaten our way of life, shows how UK forces are prepared to act, throughout the year, ensuring Britain's security at home and influential overseas."
During December, the American forces carried out what it described as a "large-scale strike" against IS targets in Syria, following an attack claimed the lives of two US troops and a local interpreter in the Palmyra area.
The U.N. says Islamic State still boasts between 5,000 and 7,000 fighters in Iraq and Syria.
